baber/WOPTO huggingface dataset:
Patent GB-643647-A (GB)
Title: Improvements in or relating to steam generators and the like
IPC: F22B1/22
Filed: 1946-03-04
Abstract: 643,647. Forced-flow steam boilers. SOC. CIVILE D'ETUDES THERMO-MECANIQUES. March 4, 1946, No. 6717. Convention date, March 3, 1945. Addition to 604,373. [Class 123(ii)] A steam generator &c. comprises a lower casing 1, locating a combustion chamber 14, primary steam-generating tubes 20 and a superheater 34, and an upper steam and water drum 31 provided with feed-water inlet pipes 53 and downcomers 54, the latter leading to circulation pumps 16 which discharge through pipes 18 into a jacket 15 surrounding the combustion chamber. From the jacket 15 the water passes into opposed lower headers 21 and through the tubes 20 to upper headers 22 and from chambers 26 above the said headers 22 the resultant water-steam mixture is led by supplementary steam-generating tubes 27 to upper chambers 28 each of which communicates with the drum 31 through a pipe 29 and common conduit 30. The tubes 20 are arranged vertically in rows in staggered relationship, and they have their ends made of reduced diameter and bent at right angles for connection to the two pairs of headers 21, 22. The superheater tubes 34 are of zigzag formation and extend between the inner compartments 235 of two opposed saturated steam chambers 35 and a central superheated steam header 36 having an outlet 43, 44, 45. Supplementary superheating tubes 37 are also provided, these tubes depending down to the lower end of the tubes 20 and being connected between the said inner compartments 235' and the outer compartments 135 of the chambers 35, these outer compartments being in communication with the steam dome 40 of the drum 31 through pipes 41, 42. Dampers 32, 39 are provided for controlling the flow of combustion gases through the superheater. A pair of oil-fuel burners 9 are shown projecting into the combustion chamber, each burner being in the form of a refractory sleeve 10 housed in a watercooled cylinder 11 and having associated fuel and air pipes 12, 13 respectively. Apparatus for maintaining equality of pressure between the steam and combustion gases comprises a piston 56 which is connected to a dash-pot device 59 and reciprocates within a cylinder 55 the ends of which are subjected to the steam and gas pressures through pipes 57, 58 respectively, the rod 60 of the piston 56 having controlling means 61, 62 for adjusting the supply of fuel and/or air to the burners 9.
Patent GB-1120496-A (GB)
Title: Improvements in overpasses
IPC: E01D19/10
Filed: 1967-02-13
Abstract: 1,120,496. Road junction flyovers. W. W. PLEASANTS. 13 Feb., 1967 [17 May, 1966], No. 6721/67. Heading E1G. At the intersection of a road 16, having a central strip 18, with a road 10, four horizontal overpass road sections 58, 60, 62, 64 and co-operating ramps 86 are suspended by vertical rods 68, 72 from a horizontal framework carried by three semi-circular arches 30, 34, 38. The arches 30, 34, which may be of tubular steel, straddle the road 16 and are supported on the pavement 24, while the arch 38 straddles the road 10 and is supported on the central strips 18. The horizontal framework comprises three members 44, 45, 56 parallel to the road 10 and supported by rods 70, 66, one member 48 at right angles thereto and two pairs of diverging members 50. Each road section comprises reinforced concrete 80, 82, Fig. 5, on a plate 76 carried by two stringers 74. Railings 84 and cover plates 78 are provided.
Patent GB-829633-A (GB)
Title: Synthesis of steroids
IPC: C07J75/00
Filed: 1956-02-17
Abstract: The invention comprises 9a ,11b -oxido-steroids of the D 1-allopregnene, D 6-allopregnene, D 1,4 pregnadiene or D 4:6-pregnadiene series, and a process for the preparation thereof which includes the step of reacting a corresponding 9a -halo-11b -hydroxy steroid with a dehydrohalogenating agent.  Suitably the D 1, D 6, D 1,4 or D 4,6 - 9a  - chloro - 11b  - hydroxy steroid may be reacted with a salt of a strong base and a weak acid, such as an alkali metal carbonate (e.g. potassium carbonate) or an alkali metal alkoxide (e.g. sodium methoxide).  The 9a ,11b -oxide steroid may then be reacted with hydrobromic or hydroiodic acid to form the corresponding 9a -halo derivative.  An example describes the preparation of 9a ,11b -oxide- D 1, allopregnene - 17,21 - diol - 3,20 - dione, 9a ,11b -oxido - D 1,4- and 9a ,11b  - oxido - D 4,6 - pregnadiene-17,21-diol-3,20-dione.
Patent GB-690728-A (GB)
Title: Substituted succinimides
Filed: 1951-03-21
Abstract: The invention comprises a -(o-chlorophenyl) succinimide and a -(o-chlorophenyl)-b -methylsuccinimide.  These compounds are prepared by reacting with ammonia a -(o-chlorophenyl) succinic acid and a -(o-chlorophenyl)-b -methyl succinic acid respectively or the anhydride thereof and heating the resultant reaction product.  When the acid is employed the intermediate reaction product is the di-salt of the acid and ammonia.  When the starting material is the anhydride, the intermediate is the half amide, i.e. the corresponding succinamic acid.  The latter is heated preferably in the presence of a dehydrating agent, e.g. acetyl chloride or acetic anhydride to yield the succinimide.  Examples illustrate the invention as applied to the substituted succinic acids as starting materials.  A table shows the anti-convulsant effect of the products on cats, mice and rats.
Patent GB-660988-A (GB)
Title: Improvements in or relating to radio and like amplitude modulated transmitters
Inventor: STAINES CYRIL ROBERT
IPC: H04B15/02
Filed: 1948-03-04
Abstract: 660,988. Phase difference measurements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 16, 1948 [March 4, 1948], No. 6818/48. Class 37. [Also in Groups XXXV and XL (c)] In an amplitude modulated transmitter in which phase modulation is introduced in the final stage by variations in the energy source for that stage, means controlled by the undesired phase modulation are provided to effect compensating phase modulation of the oscillations fed to the input of the stage. In Fig. 1, oscillations from harmonic generator HG and master oscilator MO, are amplified in valve V1 and buffer valve V2, and applied via reactance valve V3 and valve V4 to cascade amplifiers 2A, 3A and thence to the final push-pull amplifier V5, V6 for transmission to the output feeder OF. Amplitude modulation may be effected in any convenient manner. A circuit comprising diodes V7, V8 is provided to detect any undesired phase modulation which may be introduced by variations in the A.C. supply which is used to heat the filaments of valves V5 and V6. The antiphase outputs from valves V5, V6 are applied to diodes V7 and V8 which are also fed in parallel with the output from valve V1 via a buffer valve V9 and a phasecontrol circuit R3, L5, C11. The phasecontrol circuit is adjusted so that in the absence of undesired phase modulation in the final amplifier stage the two input voltages to each diode are in quadrature. The introduction of any phase modulation then results in the diode currents through loads R4, R6 and R5, R6 being unequal, and a differential voltage is supplied via switches S2 and S3 to resistors R1, R2 in the cathode and control grid circuits of the reactance valve V3 to effect a compensating change of phase in the transmission channel. Switch S3 is a phase reversal switch. Switch S2 provides for an alternative method of correction, in which the filament supply source AC is phase adjusted by means of circuit R7, L6, C12 and then doubled in frequency by means of rectifiers K1, K2 and this is then used as the correction voltage which is applied to the reactance valve V3. An indication of the phase modulation present may be obtained by connecting a low-frequency indicating means across the diode load R6. Fig. 2 (not shown), describes an alternative arrangement in which the circuit comprising diodes V7, V8 is connected to the output circuit by transformer coupling.
Patent GB-393709-A (GB)
Title: Improvements in and relating to atomisers or sprayers
IPC: A61M11/06
Filed: 1932-03-07
Abstract: 393,709. Atomizers. CORTHINE, G. O., 3, Tillottson Road, Lower Edmonton, Lon. don. March 7, 19.32, No. 6844. [Class 69 (iii).] An atomizer for medicinal purposes comprises a compressible bulb 1, as shown in the Figure, to which is connected a pressure tube f mounted within a glass casing h. Around the pressure tube f is mounted an induction tube g so as to form an annular space h immersed in the liquid. The upper part of the tube g is bulbous and formed with an offset extension continued as a tapered tube l approximately parallel with the tube f but bent over at the top as shown. In a modification the lower end of the tube g may be flared. The atomizer may be provided with a nozzle tube fitting on the end e.
Patent GB-561926-A (GB)
Title: Deformable medium for controlling a light stream
IPC: H04N5/74
Filed: 1941-05-29
Abstract: 561,926. Light modulating. GES. ZUR FORDERUNG DER FORSCHUNG AUF DEM GEBIETE DER TECHNISCHEN PHYSIK AN DER EIDGENOSSISCHEN TECHNISCHEN HOCHSCHULE. May 29, 1941, No. 6914. Convention date, Aug. 28, 1940. Addition to 543,485. Drawing to Specification. [Class 40 (iii)] In a television apparatus as claimed in the parent specification, the flatly extended medium deformable by electron bombardment for modulating the light beam is chosen to satisfy the following equations, namely :- and where K= electric conductivity, alpha = capillarity constant, N=number of pictures per second, c=recording speed of cathode-ray, to=frequency of the carrier, k=viscosity, and qe and qm are constants having the following range of values, namely :-
Patent GB-1040000-A (GB)
Title: Improvements in the packing or handling of roller, needle and ball bearings
IPC: B65D57/00
Filed: 1963-02-21
Abstract: 1,040,000. Packing bearings. NADELLA S.A., and A. PITNER. Feb. 21, 1963 [April 6, 1962], No. 6964/63. Heading B8C. A support 6 for packing roller, needle or ball bearings 1 comprises a sheet of material having a series of upstanding studs 7 each fitting tightly inside the rolling elements of a bearing, which elements may be initially grease-retained or have an inner cage. The material may be flexible or a thin slab and may be transparent; aluminium, paper, cardboard, impregnated fabric, moulded rubber or plastics may be used, if desired covered by or impregnated with an anti-rust product. The studs may be cylindrical with or without an upper or lower annular rim, or tapered. They may have a perforated top face and may extend completely into the bearings, which may be open at both ends. The studs may be disposed in quadrille or staggered formation and may be formed by pressing, moulding or suction. The orientation of the bearings on the support may be related to their orientation in the articles in which they are to be fitted, to facilitate assembly with the latter. The support may be rectangular or circular, and supports may be superimposed as shown to form a package for transport.
Patent GB-791083-A (GB)
Title: Fuel and lubricating oil additive compounds obtained by reacting boron sulphides or boron thioacids with terpenes or derivatives thereof
Inventor: AGIUS PETER JOSEPH VERMONT JAM
IPC: C07F5/02
Filed: 1955-03-10
Abstract: The invention comprises oil-soluble boron and -sulphur containing compounds obtained by reacting at an elevated temperature a boron sulphide and/or a boron thioacid with a terpene, terpene acid or terpene acid ester.  Terpenic starting materials mentioned include mono- or polycyclic terpenes, e.g. dipentene, pinenes, e.g. a -pinene, diterpenes, e.g. camphorene, abietic acid and methyl and ethyl esters thereof.  In an example, commercial dipentene is heated under reflux with a mixture of boron trisulphide and metathioboric acid to obtain a product soluble in mineral lubricating oil.  The products are employed as anti-oxidants and corrosion inhibitors in lubricating oils (see Group III).ALSO:Lubricating and fuel oil compositions comprise a soluble proportion of an oil-soluble boron- and sulphur-containing compound obtained by reacting at an elevated temperature a boron sulphide and/or a boron thio-acid with a terpene, a terpene acid or terpene acid ester (see Group IV (b)) as antioxidant and corrosion inhibitor.  Terpenic starting materials mentioned include mono- and poly-cyclic terpenes, e.g. dipentene, pinenes, e.g. a -pinene, diterpenes, e.g. camphorene, abietic acid and methyl and ethyl esters thereof.  Lubricating oils mentioned include mineral, animal and vegetable and synthetic lubricating oils comprising complex esters, diesters and formals.  Fuel oils mentioned include internal-combustion engine fuels, petroleum residual fuels and middle distillates.  In an example a product obtained by heating boron trisulphide and metathioboric acid with dipentene is added to mineral lubricating oil.  Boron sulphides are obtained by direct union of the elements or by passing, preferably in a stream of inert gas, sulphur containing compounds such as carbon disulphide, mercaptans or thioethers over boric oxide at red heat or by heating thioacids of boron.  Boron trisulphide is obtained by heating meta-thioboric acid at about 100 DEG  C.  Boron thioacids are prepared by reacting boron tribromide with hydrogen sulphide, the tribromide being optionally dissolved in a solvent such as dry benzene or toluene.
Patent GB-1408845-A (GB)
Title: Production of edible protein containing substances
IPC: C12N1/14
Filed: 1973-02-13
Abstract: 1408845 Reducing nucleic acid content of fungal protein RANKS HOVIS McDOUGALL Ltd 28 Jan 1974 [13 Feb 1973] 7087/53 Heading C3H [Also in Division C6] A process for reducing the nucleic acid content of an edible protein-containing substance involves contacting a grown non-toxic microfungus of the glass Fungi Imperfecti with a solvent comprising between 40% and 100% (by volume) of a lower alkanol containing up to three carbon atoms and thereafter maintaining (incubating) at a pH between 5 and 9À5 and at a temperature between 30 and 80 C. for a time of at least 90 seconds, typically up to 40 minutes. Fungal mycelia so treated possess a reduced level of RNA of below 4% by weight. The preferred solvent is isopropanol or an aqueous solution of isopropanol. The microfungus may, for example, be suspended in 66% isopropanol for 1 or 2 minutes at 20 C. and the isopropanol removed by filtration. The incubation may take place in a buffer solution of ammonium chloride adjusted with ammonium hydroxide or hydrochloride acid. The following species (and strains) of fungi are particularly mentioned: Fusarium graminearum Schwabe IMI 145425, Penicillium notatum-chrysogenum IMI 138291, also Fusarium oxysporum, Fusarium solani, Penicillium funiculosum and Aspergillus niger.
Patent GB-634622-A (GB)
Title: Improvements in or relating to holders for thermionic valves and the like devices
IPC: H01R33/76
Filed: 1948-03-08
Abstract: 634,622. Holders for discharge tubes. KEIR, L., and PLESSEY CO., Ltd. March 8, 1948, No. 7100. [Class 38 (i)] A valve-holder comprises longitudinallysplit tubular sockets 1 each provided opposite the split with a projection 2 which engages an inserted valve-pin, and recesses 3 which position the sockets in the valve base 5. The sockets are slid into base grooves 6 and are secured therein by a locating member which is riveted to the base 5, Fig. 3 (not shown). According to the Provisional Specification, the sockets may taper inwardly towards the base.
Patent GB-1280608-A (GB)
Title: A set of parts for use in the construction of tubular frameworks
Inventor: TAYLOR GEORGE OSWALD
IPC: F16B7/04
Filed: 1970-02-13
Abstract: 1280608 Furniture joints BRITISH ALUMINIUM CO Ltd 19 April 1971 [13 Feb 1970] 7121/70 Heating A4H [Also in Division E2] A single piece substantially solid plug for connecting the non-circular tubular members of a framework is formed with slots 2 delineating tongues 1 adjacent the corners thereof, which tongues when the plug is inserted into a tubular member 10 engages the member only at or adjacent the corners thereof. The plug may be of extruded aluminium or a plastics and be secured in the member by an epoxy resin. A keyhole passage 6 receives a stud screwed into a member 10 Fig. 7; a self-tapping screw, passing through a hole in the member, engages in the slot 8. The plug, in a modified form, has recesses 11 to provide webs 12 which are slotted at 15 whereby tongues 13 are formed.
Patent GB-450704-A (GB)
Title: Improvements in apparatus for modulating or demodulating an electrical carrier of frequency, high compared with that of the signals modulating it, and more particularly of radio frequency
IPC: H03C1/52
Filed: 1935-03-07
Abstract: 450,704. Valve modulating and demodulating circuits. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and FARREN, L. I., and STEWART, J., c/o General Electric Co., Ltd., Wembley, Middlesex. March 7, 1935, No. 7160. [Class 40 (v)] A modulator or demodulator comprises two pairs of valves with the input voltages applied in push-pull between corresponding grids in the valve pair, a 90‹ phase displacement being produced between the voltages fed to one pair of valves relatively to the other pair of valves. The valves are preferably bi-linear and may be of the hexode type. The Figure shows an arrangement in which a common load resistance 3 is used and in which both the input frequencies and one of the sidebands are removed. In this arrangement networks 13, 14 are provided to produce the required displacement in phase and the outputs so combined that the required sideband is obtained. Lack of balance in the valves may be compensated by adjusting the centre tappings of the input transformers. U.S.A. Specification 1,977,536 is referred to.
Patent GB-853962-A (GB)
Title: Improved amusement or instructional device
Inventor: PAGE HILARY FISHER
IPC: G09B11/04
Filed: 1956-03-07
Abstract: 853,962. Educational appliances. PAGE SENSIBLE TOYS Ltd., H. March 7, 1957 [March 7, 1956], No. 7171/56. Class 146(2). An amusement or instructional device comprises a rigid board 1 with a surface for marking with a pencil having a number of dots formed by shallow depressions equi-spaced in horizontal and vertical rows, and marginal horizontal and vertical identifications, whereby any dot may be identified. The board may be formed of opaque plastic, and the dots and identifications made by moulding or pressing. The surface may be covered with a transparent sheet 3 providing the writing surface. A picture is formed by joining dots as set out in a key which may also indicate the colours to be used.
Patent GB-376684-A (GB)
Title: Improvements in and relating to mixing apparatus
IPC: B01F27/91
Filed: 1932-03-10
Abstract: 376,684. Mixing-apparatus. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Maschinenfabrik Augsburg-N³rnberg Akt.- Ges.; Nuremberg, Germany.) March 10, 1932, No. 7176. [Class 86.] In mixing-apparatus in which the liquid in a container is circulated upwardly through a tube by a propeller, a second circulating device is arranged below the first and projects the liquid forcibly against the bottom of the container to stir up any solid deposited material. The upper circulating device comprises a propeller b which circulates the liquid through the tube, as shown. On the same shaft is a second propeller e, of opposite pitch, which projects the liquid through the tube g downwardly.
Patent GB-1102794-A (GB)
Title: Method of manufacturing polyvinyl alcohol fibres having high young's modulus
IPC: D01F6/14
Filed: 1965-02-19
Abstract: 1,102,794. Fibres containing polyvinyl alcohol. KURASHIKI RAYON KABUSHIKI KAISHA. 19 Feb., 1965 [20 Feb., 1964], No. 7209/65. Heading B5B. A spinning solution having dissolved therein polyvinyl alcohol and from 0À1 to 50%, preferably from 1 to 30%, by weight based on the total polymer weight of an elastic polymer (or a pre-polymer which provides such an elastic polymer) is spun under dry, wet or semi-melt spinning conditions to from fibres containing polyvinyl alcohol. The fibres thereafter are drawn, for example in a gaseous medium such as air or in a heated liquid which is inert to the materials forming the fibres, to a draft of at least 50%, preferably of at least 500%. The polyvinyl alcohol may be a hydrolysed polyvinyl ester containing a small proportion of residual ester groups and having a degree of polymerization of from 500 to 3000. The elastic polymer or pre-polymer thereof is a polyurethane elastomer derived from a polyol, a polyisocyanate and a chain extender (but excluding basic polyurethanes derived from a polyol which is a tertiary amino compound, such as disclosed in Specification 779815), a block copolymer of polyethylene terephthalate and polytetramethylene glycol, a copolymer of ethylene terephthalate and ethylene sebacate, a N-methoxymethyl polyhexamethylene adipate, a copolymer of ethylene and vinyl acetate, a natural rubber or a synthetic rubber. Prior to spinning, the materials which will form the blended fibres may be dissolved, preferably separately, in one or more organic solvents, for example dimethylsulphoxide, dimethylformamide, dimethylacetamide, ethylene glycol, glycerine, phenol, m-cresol, nitrobenzene or dichlorobenzene; a mixture of two or more organic solvents may be used. The solvent or solvents may contain a minor proportion of water. When the fibres are formed by wet spinning, the coagulating bath may contain alcohols, for example methanol, ethanol or butanol, or aromatic hydrocarbons, for example benzene or toluene; alternatively, an aqueous coagulating bath containing an inorganic salt or salts, for example zinc chloride, may be used. The coagulating bath may also contain a solvent for the spinning solution, for example dimethylsulphoxide or dimethylformamide preferably mixed with an alcohol.
Patent GB-1510911-A (GB)
Title: Electromagnetic switching device
IPC: H01H50/16
Filed: 1976-02-24
Abstract: 1510911 Electromagnetic switch MOSKOV AVIATSIONNY INST IM SERGO ORDZHONIKIDZE 24 Feb 1976 7270/76 Heading H1N A high-speed, bi-stable switching device comprises a magnetic circuit member 1 having a pair of side legs 2 and 3 with free ends, each carrying one contact 5, 7 of a magneticallyresponsive switch and having control windings W1 and W2 arranged to produce fluxes in opposite directions in the side legs in response to control signals. When W1 is energized the flux F1 causes switch contacts 5, 6 to close but the component F2 through the other side leg 3 is insufficient to close contacts 7 and 8. Alternative energization of W2 produces flux F2 which closes contacts 7 and 8 whilst the component F1 in side leg 2 demagnetizes this limb to release the contact 5. In alternative embodiment the magnetic member is E-shaped or H- shaped and in the latter case carries 3 pairs of contacts at each end.
Patent GB-435734-A (GB)
Title: Improvements in electric arc welding
IPC: B23K35/40
Filed: 1935-03-08
Abstract: 435,734. Uniting by fusion. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Võsteras, Sweden. March 8, 1935, No. 7304. Convention date, March 9, 1934. [Class 83 (iv)] In automatic arc welding with flux coated electrodes, two electrodes are fed simultaneously to the work, the current being supplied thereto by slip or roller contacts arranged between and engaging the uncovered surfaces of the electrodes. The electrodes may be fed in coated form or the coating may be applied during feeding. Two electrodes 1 of semicircular or semielliptical cross-section are fed to the work from supply rolls and are pressed by rolls 3 against a wedgeshaped current supply contact 2 or a pair of contacts separated by springs. The electrodes pass through a die 4 through which is fed a strip 5 of fluxing material which is drawn round the electrodes and the edges pushed by a roller 7 between them as shown in Fig. 3. They then pass through rolls 8 which press them together so as to completely enclose the electrodes with the fluxing material. The electrodes may be provided with coatings prior to insertion in the apparatus. In the form c, Fig. 4, the uncoated surfaces may be provided with longitudinal grooves to engage the contacts and in form d a groove in one electrode may engage a rib on the other electrode after passing through the rolls 8.